JP6550077B2 - Multiple glass shoji - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a multiple glass insulator constructed by spacing three or more glass plates by a spacer which is a frame.

  Double-layer glass is widely used because it is superior in heat insulation and soundproofness to single glass plates. The double glazing comprises at least two glass plates and a spacer which is a frame for spacing the two glass plates apart. This configuration forms a hollow layer between the two glass plates. The spacer which is a frame is comprised by the several spacer and the spacer connection member which connects the edge parts of a spacer. Various proposals have been made regarding the connection between the spacer and the spacer connecting member.

  In patent document 1, spacers are connected by inserting the insertion part provided in the spacer connection member and arrange | positioned by L shape in the space part of a spacer. Furthermore, in order to realize a seal between the spacer connecting member and the spacer, the spacer connecting member and the spacer sandwich a sealing member (for example, butyl).

Patent No. 4931090

  In recent years, a multiple glass shoji has been proposed in which three or more glass plates are spaced apart by one spacer. In order to realize the seal between the spacer connecting member and the spacer also in the multiple glass insulator, it is necessary to sandwich the sealing member between the spacer connecting member and the spacer.

  By the way, since the spacer connection member used for the multiple glass shoji has a plurality of L-shaped insertion parts, there is a gap between the adjacent insertion parts, and the seal member is at a predetermined position at this gap position There is a concern that does not stop there.

  Since the spacer connection member of Patent Document 1 does not have a plurality of insertion portions, there is no gap between adjacent insertion portions, and there is no need to consider holding the seal member at the position of this gap.

  The present invention has been made in view of such circumstances, and provides a multiple glass seal capable of holding a seal member at a predetermined position and realizing a seal between a spacer connecting member and a spacer. The purpose is

  The multiple glass shoji of this embodiment includes a first glass plate, a second glass plate disposed opposite to the first glass plate, and a space between the first glass plate and the second glass plate. To form a hollow layer between the first glass plate and the second glass plate, wherein the first glass plate and the second glass plate are disposed And a plurality of L-shaped members inserted in the spacer to connect the spacer with a spacer having a groove portion for holding a part of the intermediate glass plate and the end portions of the plurality of spacers. Between the spacer connecting member having the projecting portion formed between the inserting portions, and the inserting portion adjacent to the spacer and the spacer connecting member. Located in the projection Having a seal member disposed on the opposite side of the hollow layer against.

Preferably, the seal member is made of a butyl-based material.
Also preferably, the protrusion is inserted into the groove.

In addition, preferably, the protrusion of the spacer connecting member is formed between the plurality of L-shaped insertion portions so as to protrude from the main body.
In addition, preferably, the seal member is supported by the protrusion, and is sandwiched between an end face of the spacer and a main body of the spacer connecting member, and is sealed between the spacer and the spacer connecting member.
In addition, preferably, the seal member is supported by the protrusion and is disposed on the side of the outer side of the spacer, which is the main body of the spacer connection member.

  According to the multiple glass shoji of the present invention, the seal member can be held at a predetermined position, and a seal between the spacer connection member and the spacer can be realized.

Sectional drawing of the lower part of the window to which the multiple glass shoji according to the embodiment is applied General perspective view of the multiple glass shoji shown in FIG. 1 Longitudinal section of lower part of multiple glass shoji shown in FIG. 2 An exploded perspective view of a spacer connecting member for connecting the spacers as viewed from the inner surface portion An exploded perspective view of a spacer connecting member for connecting the spacers as viewed from the outer surface portion Principal part explanatory drawing which showed the state which connected the spacer and the spacer connection member 7 (A) and 7 (B) are explanatory views showing a state in which the intermediate glass plate is inserted into the spacer connecting member having the projecting portion. 8 (A) and 8 (B) are explanatory views showing a state in which the intermediate glass plate is inserted into the spacer connecting member having no projecting portion. An exploded perspective view of a support plate connecting member for connecting the support plates Principal part explanatory view showing a state in which the spacer and the spacer connection member are connected by a screw and a state in which the support plate and the support plate connection member are connected by a screw

  It demonstrates based on drawing which attached the multiple glass shoji of embodiment of this invention.

  The drawings illustrate preferred embodiments of the present invention, and the present invention is not limited to the illustrated drawings and the description thereof.

  FIG. 1 is a vertical cross-sectional view of a lower portion of a window 100 on which a multiple glass shoring 120 according to an embodiment is mounted.

  In the window 100, the attachment frame 110 is attached to the window frame 20 from the outdoor side to the inside of the existing window frame 20 attached to the opening of the frame of the building, and the multiple glass shutter 120 of the embodiment is attached to the attachment frame 110. It is constituted by wearing.

  The window frame 20 is configured by forming a lower frame 20A, an upper frame (not shown) and left and right vertical frames in a four-way framework, and the respective frame members of the window frame 20 are fixed to the housing by screws. Similarly, the attachment frame 110 is configured by forming a lower frame 110A, an upper frame (not shown) and left and right vertical frames in a four-way manner.

  Moreover, the code | symbol 50 of FIG. 1 is a rim of the outdoor side, and the code | symbol 52 is an airtightness material by the side of indoors. Each of the window frame 20 and the attachment frame 110 according to the embodiment is an extruded shape of a hard synthetic resin material or an aluminum alloy. In the illustrated example, the window frame 20 and the attachment frame 110 are examples of window frames for FIX windows that can not be opened and closed.

  The multiple glass shoji 120 uses a frame in which four spacers described later are integrated, and includes two glass plates and at least one glass plate between the two glass plates (ie, an intermediate glass plate). Are arranged at intervals.

[Whole structure of multiple glass shoji 120]
FIG. 2 is an entire perspective view of the multiple glass shoji 120, and FIG. 3 is a vertical cross-sectional view of the lower part of the multiple glass shoji 120. As shown in FIG.

As shown in FIG. 2 and FIG. 3, the multiple glass shoji 120 is disposed opposite to the glass plate (ie, the first glass plate) 122 disposed on the outdoor side of the building and the glass plate 122 and disposed on the indoor side. A glass plate (that is, a second glass plate) 124, three intermediate glass plates 126A, 126B, and 126C disposed between the glass plate 122 and the glass plate 124, and the glass plate 122 and the glass plate 124. A spacer 128 spaced apart and holding the intermediate glass plates 126A, 126B and 126C spaced apart, and a support plate 200 supporting the spacer 128 from the outside. At four corners of the glass plate 122 and the glass plate 124 where the respective ends of the four spacers 128 respectively abut, the ends of the abutted spacers 128 are the corner keys 150 (ie, the corners) The end portions of the butted support plates 200 are connected to each other by the spacer connecting members and configured in a frame shape, and also at four corners where the respective end portions of the four support plates 200 are respectively butted. Each is connected by a support plate corner key 250 which is a support plate connecting member, and is configured in a frame shape.
When the intermediate glass plates 126A, 126B, and 126C are collectively referred to, they are simply referred to as the intermediate glass plate 126.

  The glass plate 122 and the glass plate 124 are spaced apart by the spacer 128 around the periphery thereof. Thus, a hollow layer is formed between the glass plate 122 and the glass plate 124. The hollow layer formed by the glass plate 122, the glass plate 124, and the spacer 128 is sealed by the spacer 128 at the periphery, and the three intermediate glass plates 126A, 126B, 126C are arranged separately. Thus, the hollow layer is divided into four divided hollow layers 130. The support plate 200 is preferably arranged to abut on the outer surface of the spacer 128 opposite to the inner surface on the hollow layer side via the moisture-permeable and waterproof layer.

<Spacer 128>
As shown in FIG. 3, the spacer 128 is connected to the inner surface 132 and the outer surface side 134, the inner surface 132 and the outer surface 134 which maintain the distance between the glass plate 122 and the glass plate 124. It is comprised from the side parts 136 and 136 which oppose an inner side wall part, and several space parts 140 with which the desiccant 138 (refer FIG. 1) is filled.

  In the spacer 128, three rows of groove portions 142 are provided on the inner surface portion 132 of the spacer 128 in order to hold a part of the peripheral portions of the three intermediate glass plates 126A, 126B, 126C. The three rows of grooves 142 are formed in parallel along the longitudinal direction of the spacer 128 so as to arrange the three intermediate glass plates 126A, 126B, 126C in parallel.

  In the embodiment, the space portion 140 is divided into four in the left-right direction by forming three rows of groove portions 142 for holding the intermediate glass plate 126. The number of space portions 140 is determined according to the number of intermediate glass plates 126. The spacer 128 of the embodiment is integrally formed to have a plurality of spaces 140 and a plurality of grooves 142.

  The spacer 128 is molded by a spacer forming material. As a molding method, a molding method such as an extrusion molding method using a spacer forming material, a co-extrusion molding method, or an injection molding method can be used.

  As a spacer forming material, a synthetic resin material is preferably used. As a synthetic resin material for spacer formation, although a rigid vinyl chloride resin material, an acrylonitrile styrene resin material, and what put the glass fiber material in these is preferable, it is not limited to these thermoplastic synthetic resin materials Various thermoplastic synthetic resin materials can also be used.

  Moreover, as a spacer formation material, it is good also as a composite structure using not only 1 type but multiple types of material. For example, different resin materials may be used as a spacer of a composite structure made of partially different synthetic resin materials by a co-extrusion molding method, or as a spacer of a composite structure made of a synthetic resin material and an aluminum material. In particular, the spacer 128 formed of a hard vinyl chloride resin material or an acrylonitrile-styrene resin material is excellent in heat insulation when used as the multiple glass insulator 120, easy to be integrally molded, excellent in durability, inexpensive is there.

  It is preferable that a glazing channel 144 be fitted in the groove portion 142 of the spacer 128 for supporting the end of the intermediate glass plates 126A, 126B, 126C. The glazing channels 144 allow the intermediate glass plates 126A, 126B, 126C to be easily fixed closely to the grooves 142 of the spacers 128. In addition, the thickness of each divided hollow layer 130 can be changed by decentering the glazing channel 144. In addition, even when the temperature decreases, even if the internal pressure of the split hollow layer 130 decreases and the spacer 128 deforms toward the split hollow layer 130, the pressure applied to the intermediate glass plates 126A, 126B, 126C from the spacer 128 Can be mitigated by

  Also, the grading channel 144 can be partially disposed in the groove 142. By providing the groove 142 with a portion in which the glazing channel 144 is not disposed, the divided hollow layers 130 can be communicated with each other, and the pressure inside each divided hollow layer 130 can be equalized.

  Therefore, even when the volume of the split hollow layer 130 increases or decreases with the temperature rise and the temperature drop, the increase and decrease of the volume change can be absorbed by the plurality of split hollow layers 130 as a whole. When the glazing channel 144 is not partially provided, it is preferable to provide the portion near the corner of each side of the intermediate glass plates 126A, 126B, 126C.

  The glazing channel 144 is preferably made of resin (for example, vinyl chloride resin, urethane resin) or rubber having a Shore A hardness of 50 degrees to 90 degrees. If the Shore A hardness is less than 50 degrees, it is too soft to obtain sufficient holding power for the intermediate glass plates 126A, 126B, and 126C, and if the Shore A hardness exceeds 90 degrees, it becomes too hard. It is because it becomes difficult to fit in 126A, 126B, 126C.

  As the glazing channels 144, glazing channels 144 of other shapes can be used without being limited to the shapes shown in FIGS.

  When the two glass plates 122 and 124 have a rectangular flat plate shape, the glass plates 122 and 124 are separated by four spacers 128 arranged near the periphery of the four sides.

Corner key (spacer connection member) 150
FIG. 4 is an exploded perspective view of the corner key 150 connecting the spacers 128 as viewed from the inner surface.

  As shown in FIG. 4, at the four corners where each end of the spacer 128 is abutted, the ends of adjacent spacers 128 are connected by a corner key 150 which is a spacer connecting member, and a continuous frame-like spacer 128 Configured

  The spacer 128 has an end face 160 facing the main body 152 of the corner key 150. A through hole 162 is formed in the inner surface portion 132 of the spacer 128. The through hole 162 is in communication with the space portion 140.

  The corner key 150 has a main body portion 152 and a plurality of insertion portions 154 which project from the main body portion 152 and are arranged in an L shape, and a through hole 156 is formed in the insertion portion 154. In the corner key 150, a plurality of L-shaped insertion portions 154 and the main body portion 152 which are inserted into the plurality of space portions 140 of the spacer 128 are integrally formed. Further, the main body portion 152 of the corner key 150 has an accommodating portion 155 between the adjacent insertion portions 154 in order to accommodate the corner portion of the intermediate glass plate 126. The housing portion 155 is formed of a groove portion formed in the main body portion 152.

  The insertion portion 154 of the corner key 150 is inserted into the space portion 140 of the spacer 128 to a position where the end surface 160 of the spacer 128 is in contact with the main body portion 152 of the corner key 150. Since the cross-sectional area of the insertion portion 154 is smaller than the cross-sectional area of the space portion 140 and the insertion portion 154 is inserted with almost no contact with the inner wall of the space portion 140, generation of cracks or the like in the spacer 128 is suppressed. can do.

  When the spacer 128 and the corner key 150 are connected, the through hole 162 of the spacer 128 and the through hole 156 of the insertion portion 154 of the corner key 150 are aligned at the overlapping position when viewed from the inner surface 132 side. The fixing member screw 158 is inserted into the through hole 162 of the spacer 128 from the outside of the space portion 140. The screw 158 penetrates the inner surface portion 132 of the spacer 128 and reaches the through hole 156 of the insertion portion 154. By screwing the screw 158 from the outside of the space portion 140, the screw 158 is fastened to the through hole 162 of the spacer 128 and the through hole 156 of the insertion portion 154. Since the screw 158 penetrates the spacer 128, the spacer 128 and the insertion portion 154 of the corner key 150 can be securely fixed by the screw 158.

  Here, the outside of the space portion 140 means the opposite side of the space portion 140 with the spacer 128 as a boundary with respect to the space portion 140 formed inside the spacer 128. In the embodiment, the screw 158 is inserted from the outside of the inner surface portion 132 toward the space portion 140. In order to maintain the tightness of the split hollow layer (not shown), it is preferable to insert a screw 158 from the inner surface 132.

  In the embodiment, the through hole 162 is formed in the spacer 128 as the lower hole of the screw 158, and the through hole 156 is formed in the insertion portion 154. However, for example, when a tapping screw is used as the screw 158 which is a fixing member, Through holes can also be drilled directly into the spacer 128 and the insert 154.

  In the embodiment, the corner key 150 is fixed at two places near the glass plates 122 and 124 of the spacer 128 by the screws 158, but the invention is not limited thereto. For example, it may be fixed at four places where the space portion 140 is formed or at two places located inside the spacer 128, that is, on the side far from the glass plates 122 and 124.

  FIG. 5 is an exploded perspective view of the corner key 150 connecting the ends of the spacer 128 as viewed from the outer side surface portion 134. As shown in FIG. In FIG. 5, the screws 158 and the through holes 156 and 162 are omitted.

  As shown in FIG. 4 and FIG. 5, protrusions 157 that project from the main body 152 are formed between the plurality of L-shaped insertion parts 154. Further, a string-like seal member 159 supported by the projecting portion 157 is disposed on the side of the outer side 134 of the main body 152 and the spacer 128. Since the seal member 159 is supported by the projection 157, the seal member 159 can be held in a predetermined position. When the insertion portion 154 of the corner key 150 is inserted into the space portion 140 of the spacer 128, the seal member 159 is sandwiched between the end surface 160 of the spacer 128 and the main body portion 152.

  FIG. 6 is an explanatory view of relevant parts showing a state in which the spacer 128 and the corner key 150 are connected. As shown in FIG. 6, the seal member 159 supported by the projection 157 is sandwiched between the end face 160 of the spacer 128 (see FIGS. 4 and 5) and the main body 152, so the space between the spacer 128 and the corner key 150 is Sealing (i.e. air tightness) can be achieved. In particular, since the seal member 159 is disposed on the opposite side of the split hollow layer 130 with respect to the projecting portion 157 and held in a predetermined position, the seal member 159 can be reliably sandwiched by the spacer 128 and the corner key 150. .

  In addition, when the seal member 159 is crushed by being sandwiched between the spacer 128 and the corner key 150, the protrusion portion 157 prevents the seal member 159 from flowing out toward the containing portion 155 (that is, the intermediate glass plate (not shown)). Can. As a result, the crushed seal member 159 flows out to the side of the outer surface side 134 of the spacer 128. By squeezing the sealing member 159 that has flowed out, the airtightness between the spacer 128 and the corner key 150 can be improved.

  In addition, as the protrusion part 157 is separated from the main-body part 152, in a side view, it is preferable that it is a bowl shape with a tapered tip. With such a shape, the protrusion 157 can be smoothly inserted into the groove 142 of the spacer 128.

  The seal member 159 is, for example, a butyl material (butyl rubber) which is a copolymer of isobutylene and isoprene, modified alkyd type, ester type, synthetic rubber type, phenol type, modified ester type, silicone type, acrylic type, polysulfide type It can be composed of a resin material. From the viewpoint of preventing moisture permeation, butyl-based materials are preferable.

  Next, referring to FIGS. 7A and 7B and FIGS. 8A and 8B, the intermediate glass plate 126 is inserted into the storage portion 155 of the corner key 150, The action of the protrusion 157 will be described.

  FIGS. 7A and 7B are explanatory views showing a state in which the intermediate glass plate 126 is inserted into the corner key 150 having the projecting portion 157. FIG. FIG. 7A shows a state before the intermediate glass plate 126 is inserted into the accommodation portion 155 of the corner key 150 (the grazing channel 144 is not shown). As shown in FIG. 7A, since the seal member 159 is supported by the projection 157, the seal member 159 is held at a predetermined position. From this state, the intermediate glass plate 126 is then inserted toward the housing portion 155.

  Next, as shown in FIG. 7B, when the intermediate glass plate 126 is accommodated in the accommodation portion 155, the seal member 159 is separated from the intermediate glass plate 126 by the projecting portion 157, so the intermediate glass plate 126 is a seal member. Damage to 159 can be prevented.

  FIGS. 8A and 8B are explanatory views showing a state in which the intermediate glass plate 126 is inserted into the corner key 350 having no protrusion. FIG. 8A shows a state before the intermediate glass plate 126 is inserted into the housing portion 355 formed in the main body portion 352. As shown in FIG. 8A, since the seal member 159 is not supported between the adjacent insertion portions 354, the seal member 159 is not held in a predetermined position. Therefore, a part of the seal member 159 is at a position crossing the accommodation portion 355 so as to be circled in FIG. 8 (A). From this state, the intermediate glass plate 126 is then inserted toward the housing portion 355.

  Next, as shown in FIG. 8B, when the intermediate glass plate 126 is accommodated in the accommodation portion 355, the seal member 159 and the intermediate glass plate 126 come into contact with each other, and the intermediate glass plate 126 damages the seal member 159. , There is a concern that affects the seal (ie, airtightness).

  In the present embodiment, since the projecting portion 157 is provided between the adjacent insertion portions 154, the seal member 159 can be held at a predetermined position.

  The corner key 150 having the main body portion 152 and the insertion portion 154 is preferably integrally molded of a hard synthetic resin material (for example, a hard vinyl chloride resin material, an acrylonitrile / styrene resin material, or a polypropylene resin material). The integral molding means that the corner key forming material is molded by an integral molding method such as a cutting method, a molding method, a molding method using a 3D printer, or an injection molding method. If integrally molded in this manner, it is easy to piece the corner key 150 into one member, the number of parts of the corner key 150 can be reduced, and the assembly process can be simplified.

<Divided hollow layer 130>
In the four divided hollow layers 130 shown in FIGS. 1 and 3, argon gas having a thermal conductivity smaller than that of air is sealed, and the heat insulating performance of the multiple glass shoji 120 is enhanced. In addition, the argon gas is dried by the desiccant 138 contained in the space portion 140 of the spacer 128. As a result, internal condensation of the glass plates 122 and 124 and the intermediate glass plates 126A, 126B and 126C is prevented. Furthermore, the thickness of the division | segmentation hollow layer 130 is set to 13 mm-17 mm which is the thickness which can fully exhibit heat insulation performance. That is, the thickness of the divided hollow layer 130 is set to have a width of 2 mm at the front and back with respect to the optimum value (15 mm) at which the heat insulation performance can be maximized. The number of divided hollow layers 130 is determined according to the number of intermediate glass plates 126.
If high thermal insulation is not particularly required, the above-described divided hollow layer 130 may be filled with dry air or another inert gas.

<Glass plates 122, 124>
The glass plates 122, 124 are, in many conventional embodiments, rectangular flat glass plates, each having a thickness preferably in the range of 1.3 mm to 3 mm for weight reduction. The dimensions of the plates 122, 124 are preferably identical or approximately identical.

  Moreover, as long as the glass plates 122 and 124 exist in the range of the said thickness, thickness may differ. Furthermore, it is preferable that the glass plates 122 and 124 be chemically strengthened glass having sufficient strength even if the thickness is reduced. That is, by using the glass plates 122 and 124 as the chemically strengthened glass, impact resistance performance and wind pressure resistance performance can be obtained even if the thickness is 1.3 mm to 3 mm.

  Chemically strengthened glass plates are made by immersing a glass plate containing Na component or Li component such as soda lime silicate glass in a molten salt such as potassium nitrate, Na ion of small atomic diameter and / or Alternatively, it is a glass plate in which strength is enhanced by forming a compressive stress layer on the surface layer of the glass plate by replacing Li ions with K ions having a large atomic diameter present in the molten salt. According to the chemically strengthened glass, even a glass plate having a thickness of 1.3 mm or less has sufficiently high breaking strength. Therefore, if a chemically strengthened glass plate is used as the glass plate 122, 124, even if it is a thin glass plate 122, 124 having a thickness of 1.3 mm to 3 mm, it is sufficient as the glass plate 122, 124 disposed outside Strength can be obtained.

<Intermediate glass plates 126A, 126B, 126C>
The intermediate glass plates 126A, 126B, 126C are, in many conventional embodiments, rectangular flat glass plates to correspond to the glass plates 122, 124, each thickness being for weight reduction The dimensions of the intermediate glass plates 126A, 126B, 126C are preferably the same or substantially the same.

  The intermediate glass plates 126A, 126B, and 126C may have different thicknesses as long as they are within the above thickness range. Furthermore, the intermediate glass plates 126A, 126B, 126C may be, as with the glass plates 122, 124, chemically strengthened glass having a sufficient thickness or a sufficient strength. For example, chemically strengthened glass having a thickness of 1 mm to 2 mm has a static bending strength equivalent to non-tempered glass such as float glass having a thickness of 3 mm to 6 mm.

  The intermediate glass plates 126A, 126B, and 126C are preferably in the form of a rectangular shape similar in size to the glass plates 122 and 124 so that they can be inserted into the groove 142 of the spacer 128.

  In the embodiment, the three intermediate glass plates 126A, 126B, and 126C are illustrated, but at least one intermediate glass plate 126 may be provided between the glass plates 122 and 124. That is, the multiple glass shoring 120 is configured by including at least one intermediate glass plate 126. Moreover, four or more intermediate glass plates may be sufficient. Therefore, according to the multiple glass insulator 120, since the end of the intermediate glass plate 126 supports the spacer 128 even when the temperature of the divided hollow layer 130 decreases and the internal pressure of the divided hollow layer 130 decreases, the spacer 128 Deformation towards the split hollow layer 130 can be suppressed by the intermediate glass plate 126.

<Low emission film 166A, 166B, 166C, 166D>
As shown in FIG. 1, Low-E (Low-Emissivity) is applied to at least one of the inner surfaces facing the divided hollow layers 130 of the glass plates 122 and 124 and the inner surface facing the intermediate glass plates 126B of the intermediate glass plates 126A and 126C. It is preferable that low emission films 166A, 166B, 166C, and 166D such as films be formed. That is, the glass plates 122 and 124 and the intermediate glass plates 126A and 126C can also be configured as Low-E glass.

Low-E glass refers to, for example, a low emission film mainly composed of tin oxide (SnO ₂ ) formed on a surface of a glass plate using a chemical vapor deposition apparatus, a sputtering apparatus or the like, or silver (Ag) A low emission film mainly composed of a low-emission film is formed using a sputtering apparatus or the like, and has a function of reducing the emissivity of thermal energy by infrared rays. Here, the low emission film mainly composed of silver (Ag) includes a type in which a silver film is laminated with an oxide film, a nitride film or the like. That is, since the Low-E glass has a performance that makes it difficult to pass heat, it has high thermal insulation and thermal insulation. In addition, a low emission film mainly composed of silver has a property of being easily oxidized by moisture and the like in the air, and therefore, when used for double glazing, the film is formed on the side facing the closed hollow layer. Is preferred. Furthermore, a low emission film mainly composed of tin oxide has lower reflection performance of heat rays and a lower heat shielding performance as compared with a low emission film mainly composed of silver, but is compared with a low emission film mainly composed of silver Therefore, there is an advantage that it is difficult to be oxidized and hard to be damaged because the mechanical durability is high.

  When low-E glass is used in the multiple glass insulator 120, the emissivity of the low radiation films 166A, 166B, 166C, and 166D can be made different. Thereby, the temperature rise of the divided hollow layer 130 and the temperature rise of the intermediate glass plates 126A, 126B, 126C can be suppressed, and the risk of the glass plate cracking called "thermal cracking" can be eliminated.

  For example, a low radiation film 166A having a relatively low emissivity is formed on the inner surface of the glass plate 122 outside the room. A low emission film 166B having a higher emissivity than the low emission film 166A is formed on the surface of the intermediate glass plate 126A facing the intermediate glass plate 126B. A low emission film 166C having a higher emissivity than the low emission film 166A is formed on the surface of the intermediate glass plate 126C facing the intermediate glass plate 126B. A low emission film 166D having a higher emissivity than the low emission film 166A is formed on the inner surface of the glass plate 124 on the indoor side. The low emission films 166B, 166C, 166D may have the same or different vertical emissivity. In addition, a low emission film is not formed on the intermediate glass plate 126B. The inner surfaces of the glass plates 122 and 124 mean surfaces facing the divided hollow layers 130 of the glass plates 122 and 124.

  By providing the low radiation film 166A with a relatively low emissivity to the glass plate 122 on the outdoor side, the temperature rise inside the divided hollow layer 130 and the temperature rise of the intermediate glass plates 126A, 126B, 126C can be suppressed. In addition, by using a transparent glass plate instead of the low-E glass as the middle intermediate glass plate 126B where the rise of the glass temperature is large, it is possible to suppress the temperature rise in the vicinity of the center of the intermediate glass plate 126.

  On the other hand, since the low radiation films 166B and 166C of the intermediate glass plates 126A and 126C have a higher emissivity than the low radiation film 166A, the permeability of solar heat is high and the heat is suppressed from being absorbed by the intermediate glass plate 126 , It is easy to transmit to the glass plate 124 on the indoor side. Therefore, the thermal absorption of the intermediate glass plates 126A and 126C of the divided hollow layer 130 can be suppressed while securing the heat insulation performance.

  By adopting the above-described configuration, it is possible to suppress the temperature rise of the intermediate glass plates 126A, 126B, and 126C and the divided hollow layer 130, to reduce the thermal stress, and to suppress "thermal cracking".

<Support plate 200>
As shown in FIGS. 1 and 3, the support plate 200 is a member that supports and reinforces the spacer 128. Therefore, the support plate 200 is in contact with the outer surface side 134 at a position facing the outer surface side (outer surface) 134 of each spacer 128 via the moisture permeation preventing layer 190 described later. The moisture permeation preventive layer 190 is not essential, and the support plate 200 may be brought into direct contact with the outer side portion 134. The support plate 200 is connected by a corner key 250.

  According to the multiple glass shoring 120 of the embodiment, since the spacer 128 is supported from the outside by the support plate 200, the internal pressure of the split hollow layer 130 rises due to temperature rise, and the spacer 128 is opposite to the split hollow layer 130. Even if it tries to expand to the side, the support plate 200 can suppress the spacer 128 from expanding outward.

  Due to the configuration of the multiple glass shoring 120 as illustrated, the thickness of the hollow layer between the glass plate 122 and the glass plate 124 becomes very thick as compared to a double glass consisting of two ordinary glass plates. . For this reason, the pressure received by the spacer 128 from the thermally expanding hollow layer becomes very large as compared with the double-layer glass, and in some cases the single spacer 128 can not cope with it. Further, when the spacer 128 is made of resin, it has a property of being easily expanded as compared with metal. Therefore, in the multiple glass shoji 120 according to the embodiment, the support plate 200 is provided which supports the outside of the spacer 128 and reinforces the spacer 128 to suppress the expansion of the spacer 128. Can. This makes it possible to provide a multiple glass insulator 120 with a long service life. The illustrated support plate 200 is a hollow structure having four hollow portions 202 in its cross-sectional shape.

  Regarding the shape of the support plate 200, the support plate 200 preferably has substantially the same length as the spacer 128 and a width smaller than the width of the spacer 128 in order to support the spacer 128.

  In addition, the support plate 200 is housed in a space surrounded by the inner side wall portion of the glass plate 122 and the inner side wall portion of the glass plate 124 and the outer side portion 134 of the spacer 128. In addition, between the one outer side wall of the support plate 200 and the inner side wall of the glass plate 122 and between the other outer side wall of the support plate 200 and the inner side wall of the glass plate 124, Next sealing material 182 is filled.

  In the embodiment, the support plate 200 is integrally formed to have a plurality of hollow portions 202. The support plate 200 is molded by a support plate forming material. As a molding method, a molding method such as an extrusion molding method using a support plate forming material, a co-extrusion molding method, or an injection molding method can be used.

  As a support plate formation material, a synthetic resin material is preferably used. As a synthetic resin material for forming a support plate, a hard vinyl chloride resin material, an acrylonitrile-styrene resin material, and a material obtained by adding a glass fiber material to these are preferable, but in the case of being limited to these thermoplastic synthetic resin materials However, various thermoplastic synthetic resin materials can also be used.

  Moreover, as a support plate formation material, it is good also as a composite structure using not only 1 type but multiple types of material. For example, different resin materials may be used as a support of a composite structure made of partially different synthetic resin materials by a co-extrusion molding method, or as a support of a composite structure made of a synthetic resin material and an aluminum material. In particular, the support plate 200 formed of a hard polyvinyl chloride resin material or an acrylonitrile-styrene resin material is excellent in heat insulation when used as the multiple glass insulator 120, easy to be integrally molded, excellent in durability, and inexpensive. It is.

<Corner key 250>
FIG. 9 is an exploded perspective view of the corner key 250 connecting the support plates 200 to each other.

  At the corners of the four corners where the ends of the support plate 200 are butted, the ends of the adjacent support plates 200 are connected by the corner key 250 which is a support plate connecting member, and the continuous frame-shaped support plate 200 is connected. An assembly of

  The support plate 200 has an end face 230 facing the main body 252 of the corner key 250. Through holes 232 are formed in the outer surface portion 214 of the support plate 200. The through hole 232 penetrates the hollow portion 202.

  The corner key 250 has a main body portion 252 and an insertion portion 254 which protrudes from the main body portion 252 and is arranged in an L shape, and a through hole 256 is formed in the insertion portion 254. In the corner key 250, an L-shaped insertion portion 254 and a main body portion 252 which are inserted into the plurality of hollow portions 202 of the support plate 200 are integrally formed.

  The insertion portion 254 of the corner key 250 is inserted into the hollow portion 202 of the support plate 200 until the end surface 230 of the support plate 200 contacts the main body portion 252 of the corner key 250. The cross-sectional area of the insertion portion 254 is smaller than the cross-sectional area of the hollow portion 202, the insertion portion 254 is hardly in contact with the inner wall of the hollow portion 202, and generation of a crack or the like in the support plate 200 can be suppressed.

  When the support plate 200 and the corner key 250 are connected, the through hole 232 of the support plate 200 and the through hole 256 of the insertion portion 254 of the corner key 250 are aligned at an overlapping position. A fixing member screw 258 is inserted into the hole 232 of the support plate 200 from the outer surface portion 214. The screw 258 penetrates the support plate 200 and reaches the through hole 256 of the insertion portion 254. By screwing the screw 258 from the outside of the outer surface portion 214, the screw 258 is fastened to the through hole 232 of the support plate 200 and the through hole 256 of the insertion portion 254. Since the screw 258 penetrates the support plate 200, the support plate 200 and the insertion portion 254 of the corner key 250 can be securely fixed by the screw 258.

  In the embodiment, the through hole 232 is formed in the support plate 200 as the lower hole of the screw 258, and the through hole 256 is formed in the insertion portion 254. For example, when a tapping screw is used as the screw 258 as a fixing member Through holes can be made directly in the support plate 200 and the insertion portion 254 by this.

  In the embodiment, the corner key 250 is fixed at two places near the glass plates 122 and 124 of the support plate 200 by the screws 258, but the invention is not limited thereto. For example, it can be fixed at four places where the hollow portion 202 is formed or at two places located inside the support plate 200, that is, on the side far from the glass plates 122 and 124.

  The corner key 250 having the main body portion 252 and the insertion portion 254 is preferably integrally molded of a hard synthetic resin material (for example, a hard vinyl chloride resin material, an acrylonitrile / styrene resin material, or a polypropylene resin material). The integral molding means that the corner key forming material is molded by an integral molding method such as a cutting method, a molding method, a molding method using a 3D printer, or an injection molding method. If integrally molded in this manner, it is easy to make the corner key 250 into one piece, the number of parts of the corner key 250 can be reduced, and the assembly process can be simplified. .

  FIG. 10 is an explanatory view showing a state in which the spacer 128 and the corner key 150 are connected by the screw 158 and a state in which the support plate 200 and the corner key 250 are connected by the screw 258. As shown in FIG. 10, the support plate 200 is disposed outside the spacer 128, and the spacer 128 is supported by the support plate 200 and reinforced. In FIG. 10, the seal member 159 is omitted.

<Sealing material 180, secondary sealing material 182>
As shown in FIGS. 1 and 3, the multiple glass insulator 120 is provided with a seal material 180 (that is, a primary seal material 180) and a secondary seal material 182. Side portions 136 and 136 of the spacer 128 facing the glass plate 122 and the glass plate 124 are bonded to the glass plate 122 and the glass plate 124 by butyl rubber which is the sealing material 180.

  Then, a polysulfide-based or silicone-based sealing material which is a secondary sealing material 182 is filled on the side of the outer surface side 134 of the spacer 128. The multiple glass shoji 120 is comprised by this. The sealing material 180 and the secondary sealing material 182 are not limited to the above embodiment, and the bonding with the glass plates 122 and 124 and the sealing material applied to the side of the outer surface side 134 of the spacer 128 may be the same material. . Furthermore, another seal may be provided on the outer periphery of the secondary seal 182 to protect the secondary seal 182.

<Permeate Prevention Layer 190>
As shown in FIGS. 1 and 3, it is preferable that a moisture permeation preventing layer 190 be formed on the side of the split hollow layer 130 of the multiple glass insulator 120 to prevent moisture from penetrating from the outside. In particular, when the spacer 128 is formed of a synthetic resin material, such as a hard vinyl chloride resin material or an acrylonitrile / styrene resin material, the material itself is as permeable as an aluminum spacer having high moisture permeation resistance. Moisture resistance is required.

  As the moisture permeation preventing layer 190, a material made of a material that can prevent moisture from penetrating through the spacer 128 itself in the divided hollow layer 130 is selected. As the moisture permeation preventing layer 190, a layer obtained by applying and curing a moisture permeation preventing coating, or a layer obtained by applying a moisture permeation preventing film-like material is preferable. As the moisture permeation preventive paint, typically, a fluorocarbon resin paint, a vinylidene chloride resin paint and the like can be mentioned. When the moisture permeation preventive layer is formed by applying the moisture permeation preventive paint, two or more kinds of the moisture permeation preventive paint may be applied to form two or three or more layers.

  The moisture-permeable film-like material may be a moisture-permeable metal coating film, a ceramic coating film, a composite coating film of metal and ceramic, a metal tape, and a film itself made of a resin having moisture permeation preventing performance. Examples of the resin film include a resin film for preventing resin, and a resin-coated film for preventing moisture permeation. A moisture permeation preventing film-like body in which a butyl tape made of a butyl rubber adhesive and a metal tape such as an aluminum foil or a stainless steel foil are laminated can also be preferably used.

  Further, as shown in FIG. 1, the spacer 128 has the space portion 140, so the space portion 140 can be filled with the desiccant 138 such as zeolite or silica gel. The desiccant 138 can dry the gas of the divided hollow layer 130. The desiccant 138 is exposed to the divided hollow layer 130 by an opening (not shown) formed in the inner surface 132 of the spacer 128.

  In the embodiment, since the support plate 200 is provided, the moisture permeation preventing layer 190 can be protected. The above is the configuration of the multiple glass shoji 120.

According to the multiple glass shoji of the present invention, the seal member can be held at a predetermined position, and a seal between the spacer connection member and the spacer can be realized.
The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2014-256802 filed on Dec. 19, 2014 are incorporated herein by reference and incorporated as disclosure of the present invention. .

  DESCRIPTION OF SYMBOLS 20 ... Window frame, 50 ... Leading edge, 52 ... Airtight material, 100 ... Window, 110 ... Attachment frame, 120 ... Multiple glass shoji, 122, 124 ... Glass plate, 126, 126A, 126B, 126C ... Intermediate glass plate, 128 ... Spacer, 130: split hollow layer, 132: inner surface, 134: outer side, 136: side, 138: desiccant, 140: space, 142: groove, 144: glazing channel, 150: corner key (spacer Connecting member) 152 body part 154 insertion part 155 accommodation part 156 through hole 157 projecting part 158 screw 159 sealing member 160 end face 162A through hole 166A, 166B 166C, 166D: low radiation film, 180: sealing material, 182: secondary sealing material, 190: moisture permeation preventing layer, 200: support plate, 202 Hollow section, 214 ... outer surface, 232 ... through hole, 250 ... Corner key (supporting plate connecting members), 252 ... main body, 254 ... insertion portion, 256 ... through hole, 258 ... bis.

Claims (6)

A first glass plate,
A second glass plate disposed opposite to the first glass plate;
At least one intermediate glass plate disposed between the first glass plate and the second glass plate;
In order to form a hollow layer between the first glass plate and the second glass plate, the intermediate glass plate is disposed between the first glass plate and the second glass plate. A plurality of spacers having grooves for holding the parts;
A spacer connecting member comprising a plurality of L-shaped insertion portions inserted into the spacer and a main body portion for connecting the end portions of the spacer, the space connecting member being formed between the insertion portions A spacer connecting member having a protrusion;
A seal member disposed between the spacer and the insertion portion adjacent to the spacer connection member, the seal member being disposed on the opposite side of the hollow layer with respect to the protrusion;
With multiple glass shoji.   The multiple glass shoji according to claim 1, wherein the seal member is made of a butyl-based material.   The multiple glass shoji according to claim 1 or 2, wherein the projection is inserted into the groove.   The multiple glass shoji according to any one of claims 1 to 3, wherein the protruding portion of the spacer connecting member is formed between the plurality of L-shaped insertion portions and protruding from the main body portion.   The seal member is supported by the projecting portion, and is sandwiched between an end face of the spacer and a main body of the spacer connecting member, and sealed between the spacer and the spacer connecting member. The multiple glass shoji according to any one of the above.   The said sealing member is supported by the said protrusion part, and is a main-body part of a spacer connection member, and is arrange | positioned by the side of the outer surface side of a spacer. Multiple glass shoji.

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